Hair-pin.



No. 864,360. PATENTED AUG. 27, 1907. B. H. 0001:.

HAIR PIN.

APPLIOATIOH FILED sr'1.'.21.19o5.

FIG. 3

I INVENTOR: WITNESSES: 600161,

UNITED STATES PATENT orrron.

BURTON H.. coon, or NEW-YORK, 'lI. Y.

Ham-Pm. v

No. 864,360. Specification of Patent. Patented Aug. 27, 1907. Application filed September 21, 1906. Borilllio. 279,430.

To n whom it 001E661"! prong B most closely. This is the first point at which Beit known that I, BURTON H. COOK, a citizen of the United States, residing the borough of Brooklyn, in the county of Kings, city and State of New York, have invented certain. new and useful Improvements in Hair-Pins, of which-the following is a specification.

This inventidn aims to provide a hairpin which can not easily fall out of place, which holds the hair firmly, and which at the same time is easily and cheaply manufactured. To this end, my improved hairpin has two prongs, at least one of which is bent spirally, so as to twist the hair around itin inserting the pin, and thus to hold th e hair'firmly and to resist the pins falling out.

The convolutions are preferably made of quitelong pitch, seas to permit the easy introduction of the pin and its withdrawal by hand withoutpulling the hair. Various features of improvement are referred to in do tailhereinafter. V D The'accompanying illustrate embodiments of g the invention.

1 is a side view of the pin. Fi 2 is'a side view of a different style. Fig. 3 is a crosssection on the Iine3 3oFig.l. I

, Referring to the embodiments illustrated, two prongs Aand B are provided. The prong A'is bent spirally.

The B may be of any desired shape, but is preferably as shown. Any desired nmnber of convolutions may be made in the prong A. For example, in the form shownin Fig. 2, one and one-half convolu- 8 0 'tions are provided; while in the form shown in'Fi'g. 1,

there are three and" one-half convolntions. Also the spiral may be formed in any part of the prong; Preferably it commences near the rear end C of the prong, and terminates a little short of the point D, thus leaving 85 short, straight portions 0 and D at opposite ends; The

straight point D serves to fix the pin definitely in a certain direction before the spiral portion engages the hair.

It is importantthat the hair should be gripped tightly between the rear ends of the two prongs, and to effect 40 the portion C is bent as near as desired to the prong .B, andis in line with. the inner side of the spiral.. ;Likewise it is of value to embrace between the twov prongs as much hair as possible, and the point D, therefore, is in line with the outer side of the spiral; that is .to say, considering-the inner side of the prong A to be that which is nearest to the prong B, the spiral commences at its rear end at the inner side of the prong, and terminates at the outer side thereof.

An economy in wire is effected by making the prong B shorter than the prong A, the former terminating opposits to a point E, at which the spiral approaches the the hair is gripped between the two prongs, and to extend the prong B beyond this point, is unnecessary. The hold of the .wire in the hair depends to a certain extent upon the number of convolutions, since it'is impracticable to make them so short that asingle convolution will hold very strongly. Therefore, for a given length of wire, it is advantageous to make the spiral prong longer than the straight one, sons to introduce as many convolutions as possible. r

.Fig. 3 illustrates the action of the hair k In coming out of the hair,'there is a tendency of the pin to twist about the center F of the spiral in the direction of thearrow. This rotation, however, is resisted by the prong B aljngside of the spiral prong. And since the pin is pre ented twisting, it is also prevented in falling out, unless sufiicient force be applied to cause the hair to untwist around the prong A.

ThoilghI have, describedwith great particularity of detail certain embodiments of the invention, yet it is not to ,beunderstood therefrom that the invention is to be limited to the specific embodiments disclosed. Various modifications-thereoi in detail and in the arrangementof parts may be made by those skilled in the art without departure from the invention.

-What I claim is: i

1. A hall pln havlng a plurality of prongs, at least one of which is bent spirally and the other of which lies along side of and outside of the convolutions thereof, and the spiral portion being rlgidly conuccted to the remaining portion, so that as it is forced into the hairthe other prong prevents' it from turning and it twists the hair firmly around lt and resists the pins falling out.

2. A hair pln having a prong A which is bent splrally so asto twist the hair around it, and having a prong B lying outside off and integrally connected with the prong A and the end of which is opposite to a point at which the spiral approaches the prong B most closely.

; 3. A hair pin havlng a plurality of prongs, at least one of which is bent spirally, and the other of which lies alongside of and entirely outslde of said spirally bent prong,

and the spiral portion being rlgldly connected to the re maining portion so that as it is forced into the kid; the

other prong prevents it from turning, and it twlsts' the halr firmly around it and reslsts the pius falling out, the spirally-bent prong being extended beyond the opposite prong.

4. A hair pin having a plurality of prongs at least one of which comprises a straight portion C and "a spiral the inner side of which is in line with said straight portion and the other-of which lies alongside ofand laterally 01! set from the convolutlons thereof and the spiral portion being rigidly connected to the remaining portion so that as it lsiorced into the hair the other prong prevents it from turning and 1t twists the hair firmly around it and resists the plns fhlllng out.

5. A hair pin having two prongs A and B, the prong A having an inner straight portion'C, 'an outer point D, and an intermediate spiral of long pitch the inner. side of which is in line with said portion C, and the outer side of which is in line with the point D, and being longer than the prong B, the end of the prong B being opposite to a point if) of the spiral at which the latter approaches the pmrg 8 most closely, the spiral portion being rigidly connected to the remaining portion, so that as it is forced into the hair it twists the hair firmly around it and resists 10 the pins falling out.

In witness whereof, I havehereunto-signed my name in the presence of two subscribing witnesses.

BURTON H. COOK.

Witnesses:

THEODORE T. SNELL, WM. F. Mi n'rrmaz. 

